Ok. Good. That does make sense.

I'll experiment with that. I'll add noise reduction to first darktable loop so ZereneStacker has...........better quality tifs to stack with.

On linux I use entangle, ZereneStacker and a Stackshot rail. I make a sequence of raw images. Then I use the Darktable command line interface to create a matching *.tif file for each raw. mkdir tifs for file in *nef do darktable-cli $file tifs/$file.tif done Then I cd into the tifs directory and use...

Yellowstone River, Park County Montana, June 2014 Pteronarcys Californica, locally known as the "Salmon Fly" This is actually photographed in a light tent. I brought several stoneflies home along with some willow branches and then staged the shot. This is a focus stack using Helicon Remote, which el...

Is CHLORETONE the same as Chorobutanol?

On quick look, the problem is that your rawtherapee files have 32-bit floating point color. They don't produce any error messages when read by Zerene Stacker, but the results are nonsense, even in the source panel. Try forcing 16-bit color and let me know what happens. --Rik Ok that solved it. You ...

....forgot to mention. The lighting for the two Nikon nikon.NEF files above is not good. This was just a debug session so I didn't take the time to get the strobes adjusted properly, nor the ISO F-stop settings.

Very interesting! If possible, I would still like to receive samples of a couple of tif files that show this problem. It's a well known saying that TIFF actually stands for "Thousands of Incompatible File Formats", but at this moment I cannot think of what could cause the source images to look OK i...

This now has to be a rawtherapee-cli problem. RawTherapee, version 5.3-669-g478e1c0 (this was a recent upgrade) Using lensfun 0.2.8.0 ........hmm. I wonder what lensfun is. I don't remember installing it or activating it. Instead of using rawtherapee-cli -o tifs -p ./now.pp3 -t -Y -c . to make tif f...

Ok will do. First thing tomorrow morning. With fresh brain cells. FWIW before the the Zerene output I got just prior to black was the attached. This has to be ....... I just don't know what to say. The odd thing is the tif files this bizarre image was made from look fine, as do the NEF files the tif...

I'm at a loss. I have a workflow that has worked well for several years that suddenly doesn't. I have a Mint Linux AMD64 box. I use studio lighting for bugs and trout flies. entangle and Zerene to control a StackShot rail. Nikon D700 with 105mm macro lens and optional extension rings. I shoot a stac...

Two fishing flies photographed much the same way with and without a light tent. In both shots the fly is on top of a raised 1/8" inch thick semi-translucent white plastic (Plexiglass) sheet with a slave flash underneath, pointing up, set at its lowest intensity. Two umbrella strobes left and right, ...

Hmmm. Seems to be working now.
With no apparent why.

Sorry for the hassle. I'll keep at it for few days.

I had a Mint Mate Linux system working like clockwork for focus stacking with entangle and Stackshot and ZereneStacker. But Mint Mate didn't support the Gnome color-manager for fine tuning monitor colors so I wiped my OS partition and installed Mint Cinnamon, which seems much the same but I have the...

Here's another take. This isn't my best trout fly stack but it's the one I found first. I've found halos vary considerably with lighting. The setup that works best for me so far is the following: I put the fly on top of 1/8" inch thick white Plexiglass with a thin sheet of blue acetate below the Ple...

There's a pulldown list of answers that you can select. The top one should be "I have a StackShot connected, please don't ask again." Next time the question is asked, select that answer, click OK, and it should never ask again. --Rik Oy yoy yoy. How did I mess that. My eyesight is very bad. Retina ...